There are a lot of similar products you can find in various Chinese shops, I had one that is not split system couple of months ago and was not happy with it.
This little thing really surprised me. Why ?
Well, let's start.
Most of AIO systems are in one piece. This is split system meaning that VTX is separated from the camera.
Though non split systems are good for micro quads, if you are planing to use FPV on micro airplanes like UMX series from Parkzone, that could be the problem.
Those micro airplanes are very light and adding AIO FPV on them will change the CoG of that airplane, so flying will be almost impossible.
That is where this split system comes. You can put a camera on the nose and move VTX little further away to have correct CG on the plane.
Or maybe you want your camera to be inside canopy and VTX outside.
Another problem with system that are all in one piece might be that you would like to add OSD.
OSD comes in between of camera video signal and transmitter, and since they are all in one piece, soldered together, you can't insert OSD in between.
This little thing comes as OSD ready, that means that if you want to install OSD on this FPV system, all you have to do is to cut yellow loop cable and connect your OSD.
And not to forget, this is 40 channel camera, you have a small button on VTX for changing channels and band, all instructions are in provided manual.
Now the picture quality.
For a such small device , image quality is excellent.
Since this is 25 mW transmitter as with all micro systems, range is (claimed by manufacturer) 150 meters.
And here goes the big surprise
I got nice and clear picture up to 400 meters LOS with that little thingy and Eachine diversity googles.
That was big surprise for me, because my previous micro FPV system was loosing picture after 150-200 meters LOS.
Something about the battery.
You can use any 1S LiPo battery for this FPV system, it comes with adapter for standard 1S battery connectors, and default is E-Flite/Parkzone connector.
With 150 mAh 1S battery you can have around 8-10 minutes of video transmission.
This device really is low consumption.
Enough typing, I have recorded unboxing, hooking up and flight, so here it is:
Link to product:
Output power: 25mW
Input power: 3.3V–5.0 V
Current consumption:3.3V-5V, 350mA
Camera resolution: 600TVL
Mini illumination: 1 lux
Field of view: 120°viewing angle
Antenna: Dipole brass antenna
Frequency: 5.8GHz 5 bands 40 channels, with Raceband: 5725-5875MHz
VTX Size: 19*14mm(L*W)
Camera Size: 14*14mm(L*W)